378888887 has 16 divisors (see below), whose sum is σ = 416045280. Its totient is φ = 342945792.

The previous prime is 378888883. The next prime is 378888901. The reversal of 378888887 is 788888873.

It is a cyclic number.

It is not a de Polignac number, because 378888887 - 2² = 378888883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378888883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141164 + ... + 143822.

It is an arithmetic number, because the mean of its divisors is an integer number (26002830).

Almost surely, 2^378888887 is an apocalyptic number.

378888887 is a deficient number, since it is larger than the sum of its proper divisors (37156393).

378888887 is a wasteful number, since it uses less digits than its factorization.

378888887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882.

The product of its digits is 38535168, while the sum is 65.

The square root of 378888887 is about 19465.0683790219. The cubic root of 378888887 is about 723.6089932840.

The spelling of 378888887 in words is "three hundred seventy-eight million, eight hundred eighty-eight thousand, eight hundred eighty-seven".